What is glaucoma and how would I know if I have it?

My dad lost peripheral vision in one eye before glaucoma was caught. He had no pain, no symptoms — just gradually lost side vision without realising. Now he uses eye drops daily and his vision is stable. The key takeaway: get your eyes tested every 2 years (free on the NHS if over 40 with a family history). If caught early, eye drops can prevent damage.

Glaucoma is a group of eye conditions where the optic nerve is damaged, often by high pressure in the eye. It usually develops slowly and can affect your peripheral (side) vision first. Without treatment, it can lead to blindness. It is more common over 40, in people of African or Caribbean descent, and in those with a family history. Regular eye tests are the best way to detect it early.

This is an important eye & vision question. We recommend speaking with your GP for personalised advice. You can also contact NHS 111 (free, 24/7) for urgent guidance, or visit nhs.uk for trusted health information. Please note: this is general health information, not a substitute for professional medical advice.